High-resolution Holocene N 2 O ice core record and its relationship

• Main Authors: With Ch And, Jacqueline Flückiger, Eric Monnin, Bernhard Stauffer, Jakob Schw, Thomas F. Stocker, Dominique Raynaud, Jean-marc Barnola
• Other Authors: The Pennsylvania State University CiteSeerX Archives
• Format: Text
• Language: English
• Subjects: N2O; CH4; CO2; nitrous oxide; greenhouse gases; Holocene; ice core
• Online Access: http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.8.1947; http://www.climate.unibe.ch/pdf/flueckiger02gbc.pdf

this paper we expect information about the global nitrogen cycle and changes of the main N 2 O sources and sinks. In the modern global N 2 O budget, natural N 2 O sources are nitrification and denitrification in soils (3 -- 10 Tg N yr ) and in the ocean (3 -- 6 Tg N yr ). About two thirds of the soil emissions occur in the tropics, and one third originates from temperate soils. The main sink for N 2 O, on the other hand, is its decomposition in the stratosphere by photodissociation (90%) and reactions with excited oxygen (10%) [IPCC, 2001]